| Company | Timeline | Status | |
| Alfred H Knight Mineral Processing UK Limited Director • Company Director | 25 Oct 2024←1 Year 1 Month→Current | Active | |
| Alfred H Knight Energy Services Limited Director • Chief Executive Officer | 1 Apr 2023←2 Years 8 Months→Current | Active | |
| Alfred H. Knight International Limited Director • Chief Executive Officer | 1 Apr 2023←2 Years 8 Months→Current | Active | |
| Mel Waste Insights Limited Director • Chief Financial Officer | 1 Mar 2022←3 Years→Current | Active | |
| Alfred H Knight Solid Fuels Limited Director • Chief Financial Officer | 29 Jan 2019←6 Years→Current | Active | |
| Alfred H Knight UK Holdings Limited Director • Chief Financial Officer | 26 Apr 2016←9 Years→Current | Active | |
| Alfred H Knight Overseas Holdings Limited Director • Chief Financial Officer | 26 Apr 2016←9 Years→Current | Active | |
| Alfred H. Knight Holdings Limited Director • Chief Financial Officer | 26 Apr 2016←9 Years→Current | Active | |
| Promethean World Limited Director • Chief Financial Officer | 27 Feb 2014←1 Year 8 Months→3 Nov 2015 | Active | |
Promethean Technology Limited Director • Chief Financial Officer | 27 Feb 2014←1 Year 8 Months→3 Nov 2015 | Dissolved | |
